Diagram

General

Open In Bifold Window/Door Term used to describe pairs of opening panels that move, fold and open towards the inside of the building

Open Out Bifold Window/Door Term used to describe pairs of opening panels that move, fold and open towards the outside of the building

Head and Sill Top and bottom horizontal frame members which incorporate the bi-fold gear, track and guide rail

Jamb Vertical frame members

Bifold End Track cap Plastic cover attached to each end of the bi-fold track and guide rail

Drainage Means of removing water from the frame sill and panel

Over Lite Transom Horizontal frame member that accepts fixed glazing or sashes above a door/window unit and incorporates the rolling or guide track for bi-folding Panels

Coupling Bar A profile used to join two or more separate frames together

Bifold Stile Vertical panel members where individual panels are hinged together

Hinge Stile Vertical panel member on which the frame jamb hinges are attached

Strike Stile/Bolt Stile Vertical panel member which opens second when two panels lock together. Strike stile/bolt stile is locked into frame using either flush bolts or a 2 point locking device (uno-lock/twin bolt)

Lock Stile Vertical panel member which has a locking device attached to the open and close panel

Top and Bottom Rails Horizontal top and bottom panel members

Vision Rail The name given to the horizontal panel member separating two or more panes of glass

Torsional Block Plastic component inserted into the stile ends to strengthen the connection between the panel stile and top and bottom rails. Also acts as a guide when using flush bolts, 2 point locks and compression 4 point locks

Door Hinge Hinge used to hang an aluminium door panel in a frame

Bifold Hinge Used to attach two or more folding panels together

Bifold Roller Assembly A wheel assembly used to aid the movement of folding sets of panels in one direction along a track, typically 2, 4 or 6 panel combinations (never used in Un-equal panel combinations) can be either top or bottom rolling.

Bifold Hinge Roller Assembly A wheel assembly used to aid the movement of un-equal combinations of folding panels in one direction along a track, where the roller also acts as a hinge on typically 3 or 5 panel combinations (Never used on equal panel Combinations) can be either top or bottom rolling

Bifold Guide Assembly A guide assembly used to aid in the movement of folding sets of panels in one direction along a track, typically 2, 4 or 6 panel combinations (never used in Un-equal panel combinations) can be either top or bottom guiding.

Bifold Hinge/Guide Assembly A Guide assembly used to aid in the movement of un-equal combinations of folding panels in one direction along a track, where the guide also acts as a hinge on typically 3 or 5 panel combinations (Never used on equal panel Combinations) can be either top or bottom guiding

Bifold Hinge/Handle A fitting where a pull handle is connected to a hinge for the purposes of closing an outward opening bifold door or window

Bifold Handle A fitting used on an inward opening bi-fold door or window for the purposes of Pulling the folding panel junction inwards. Not required if an uno-lock or twin Bolt is fitted

Lever Lock Device used for locking and opening/closing an aluminium door panel

Compression Lock Door lock, whereby the upward action of the handle engages or disengages The locking bolts into the top and bottom of the frame

Flush Bolt Device used to secure pairs of panels from opening in a frame, (can be either recessed or surface mounted)

Uno-Lock/Twin Bolt Security device used to secure pairs of panels from opening in a frame where one handle activates both top and bottom bolts simultaneously

Striker Plate/Keeper Plastic component used with a flush bolt or twin bolt to provide engagement of the bolt with the frame

Heel and Toe Method used to block glass within a panel to stop the panel from moving out of squareness, by using the pane of glass as a bracing element

Gusset A Proprietary component made from flat aluminium sheet or plate used to strengthen corner joints of sashes and frames

Corner Cleats/Stakes A Proprietary component made from either extruded aluminium angle or molded plastic. Used to strengthen or assist with corner joints in sashes etc

Hole Plug/Grommets Used to cover assembly holes in panel stiles

Travel Packer Component used to protect the bottom panel rail from damaging the frame sill during transit

Fin-seal Synthetic pile with a plastic weather vane running through the centre which acts as a weather seal between the panel and frame